I'm thinking of entering the field of Theoretical Physics

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John, a 17-year-old interested in science and technology, seeks insights about the daily experiences of physicists and college students. A physics student shares that a typical day for a physicist can vary between computational and pure theoretical work. Computational physicists focus on numerical solutions and simulations, often using programming to solve problems without experimental data. Meanwhile, pure theoretical physicists engage in mathematical modeling to explain phenomena like dark matter, also requiring strong programming skills. For students, the initial years of college are relatively easy, but upper-level courses present significant challenges, demanding new ways of understanding complex concepts like abstract vectors and quantum mechanics. Adapting to these difficulties is essential for success in physics.
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First off, I'd like to introduce myself as this is my first post. My name is John, I'm 17, unemployed and science/technology has kept me entertained and happy for most of my life.

With that said, I have a few questions.

The first one is for the physicists (w/ a job) on this forum. What's a typical day like for you at work? It is my understanding that physicists who do not enjoy their work are not cut out for it.

The second is for students. What's a typical day like at your college/university?

I'll think of some more later, but that's all for now.

Thanks ahead of time for your replies.
 
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Well, I am a physics student doing research for a theoretical biophysics professor. For the first question of being a theoretical physicist ... you can go down two roads... computational physics or pure theoretical physics. Anything that you try to simulate using a computer or predict without an experimental apparatus is considered theoretical work. You should be extremely comfortable with programing and such, as when you get up into the higher physics everything is solved numerically (by computer) because none of the equations you need to model a system is solvable in closed form (or exactly). In other words you can only approximate a solution for a modeled system.

Usually these computational physicists are trying to solve problems or develop ideas for which there are no experimental results for. For instance there is a theoretical professor at my school who proposed a new mechanism to build more accurate atomic clocks and then he uses code to approximate what would happen with his proposed scheme.

As for the other kind of theoretical physicist, you are basically a pure mathematician trying to find new models that can account for stuff like dark matter and such that unifies. Those are standard model theorist, and they also do a lot of computational computing. If you go into theory, expect to become programmer.

As for the student end of college... I go to class, go home, and do my homework. The first two years are extremely easy, but then when you go into the upperdivision level courses, it becomes night and day ... things in physics aren't nearly as intuitive and you'll have to learn how to use tools without know how they function. You'll also need to develop new ways of understanding material such as abstract vectors and tensors ... so on and so forth. Once you get into physics such as quantum mechanics, you can no longer visualize what is happening and you need to find a new way to understand the material. This is what you have to look forward to.
 
Hey, I am Andreas from Germany. I am currently 35 years old and I want to relearn math and physics. This is not one of these regular questions when it comes to this matter. So... I am very realistic about it. I know that there are severe contraints when it comes to selfstudy compared to a regular school and/or university (structure, peers, teachers, learning groups, tests, access to papers and so on) . I will never get a job in this field and I will never be taken serious by "real"...
Yesterday, 9/5/2025, when I was surfing, I found an article The Schwarzschild solution contains three problems, which can be easily solved - Journal of King Saud University - Science ABUNDANCE ESTIMATION IN AN ARID ENVIRONMENT https://jksus.org/the-schwarzschild-solution-contains-three-problems-which-can-be-easily-solved/ that has the derivation of a line element as a corrected version of the Schwarzschild solution to Einstein’s field equation. This article's date received is 2022-11-15...
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